Servicio Meteorológico Nacional (SMN) forecasts and ensemble weather models project Mexico City's highest temperature at Benito Juárez International Airport on April 18 to reach 26–28°C, driving trader consensus to 100% on "26°C or higher" amid persistent clear skies and high-pressure ridging over central Mexico. This aligns with April's climatological norms, where dry-season conditions and Mexico City's 2,240-meter elevation yield average highs near 26°C, amplified by recent days' observed maxima in the upper 20s°C and minimal cloud cover allowing strong diurnal heating from morning lows around 15°C. Scenarios challenging this include an unforeseen influx of cooler mid-level air or convective showers, though current satellite imagery and soundings indicate low likelihood, with final observations resolving the market later today.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Mexico City on April 18?
26°C or higher 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$20,776 Vol.
$20,776 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
Yes
26°C or higher 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$20,776 Vol.
$20,776 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
Yes
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 16, 2026, 1:53 AM ET
Resolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Servicio Meteorológico Nacional (SMN) forecasts and ensemble weather models project Mexico City's highest temperature at Benito Juárez International Airport on April 18 to reach 26–28°C, driving trader consensus to 100% on "26°C or higher" amid persistent clear skies and high-pressure ridging over central Mexico. This aligns with April's climatological norms, where dry-season conditions and Mexico City's 2,240-meter elevation yield average highs near 26°C, amplified by recent days' observed maxima in the upper 20s°C and minimal cloud cover allowing strong diurnal heating from morning lows around 15°C. Scenarios challenging this include an unforeseen influx of cooler mid-level air or convective showers, though current satellite imagery and soundings indicate low likelihood, with final observations resolving the market later today.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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